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Section 5 <br />Operational Emissions <br />The electrical energy use for Alternative 3 is estimated at 825 kWh per month. <br />Estimated annual operational GHG emissions for Alternative 3 are shown in <br />Table 27. The annual Alternative 3 operational GHG emissions would be <br />Substantially less than the one year CEQA and NEPA thresholds, <br />Table 27: Estimated Alternative 3 Operational GHG Emissions <br />Activ t <br />— - ---------- <br />Emissions (MTCO2s) <br />Well Developmerit <br />Electrical Energy <br />77 <br />3 <br />Total <br />80 <br />SCAQMD CEQA Threshold (MTCO2e/year) <br />10,000 <br />Exceeds Threshold <br />No <br />CEO NEPA Threshold (MTCO2e/year) <br />25,000 <br />Exceeds Threshold <br />No <br />,,,,,A pperidi. B By CMEEMr)d MWei QWpu(5 <br />Alternative 4: Pipeline Design Alternative <br />Construction Emissions <br />Alternative 4 would essentially involve the same pipeline length, mix of <br />construction equipment and hours of operation that would be used for the <br />Proposed Project, except that the water supply pipeline would be configured <br />differently. Therefore, GHG construction emissions for Alternative 4 would <br />essentially be the same as the Proposed Project. As shown in Table 24, the total <br />construction GHG emi:ssi�ons, which Would occur over a two-year period, would <br />be substantially less than the one year CEQA and NEPA thresholds. <br />Operational Emissions <br />Alternative 4 would involve the operation of the same amount of injection wells <br />and monitoring wells that would be used for the Proposed Project. Therefore, <br />GHG operational emissions for Alternative 4 would essentially be the same as <br />the Proposed Project, As shown in Table 25, the annual Proposed Project <br />operational GHG emissions would be substantially less than the CEQA and <br />NEPA thresholds. <br />Mitigation Measures <br />No mitigation measures required. <br />Mid Basin Centennial Park Project Final EIR 5-95 <br />